Tcl and OTcl Tutorial For NS2 - Procedures - welcome to our blog that presents the full content How Gadget, the discussion this time we're discussing that you find that Tcl and OTcl Tutorial For NS2 - Procedures, we have provided complete information with images that are easy to understand, the explanation is simple but complete, therefore please read until the end :)

This is about : Tcl and OTcl Tutorial For NS2 - Procedures
And this article : Tcl and OTcl Tutorial For NS2 - Procedures

Tcl and OTcl Tutorial For NS2 - Procedures

Procedures

Procedures are an essential component of Tcl and can be used to make programming ns simpler. As in any functional programming language, procedures can be used for repetitive tasks, or simply to logically break down the tasks in the program.Procedures are defined in Tcl as follows:

proc proc1 {} {
    puts "in procedure proc1"
}

This defines a procedure that takes no parameters and prints out "in procedure proc1". To call this procedure

proc1

can be used.A procedure with parameters can be defined as follows:

proc proc2 {parameter1} {
    puts "the value of parameter1 is $parameter1"
}

This procedure can be invoked as follows:

proc2 10

A procedure that returns a value can be defined as follows:

proc proc3 {min max} {
    set randomvar [rand $min $max]
    return $randomvar
}

This procedure generates a random variable and returns it to the calling function. This can be invoked as follows

set randomvar [proc3 0 1]

to obtain a uniform random value between 0 and 1.Sometimes it is necessary within a procedure to reference a variable that has global scope. This is the purpose of the global keyword. So, for example, in an ns script, the simulator object typically is called ns, and typically has global scope. So, it could be referenced in a procedure as follows:

proc proc4 {} {
    global ns
    $ns at 10.0 "exit 0"
}

A logical way to break down an ns script can be as follows:

set ns [new Simulator]
create_topology
create_agents
create_sources
create_recorders
$ns run

where create_topology, create_agents, create_sources and create_recorders are all procedures.

Information Tcl and OTcl Tutorial For NS2 - Procedures has been completed we present

A few of our information about the Tcl and OTcl Tutorial For NS2 - Procedures, we hope you benefit from this article

You have just read the article Tcl and OTcl Tutorial For NS2 - Procedures and many articles about gadget in our blog this, please read it. and url link of this article is https://howtomonetizeeverything.blogspot.com/2012/12/tcl-and-otcl-tutorial-for-ns2-procedures.html Hopefully discussion articles on provide more knowledge about the world of tech gadgets.

Tag :

Tweet